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  • Committer: Teddy Hogeborn
  • Date: 2015-08-10 08:25:01 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 325.
  • Revision ID: teddy@recompile.se-20150810082501-rb7w2dre1flqiqe2
Refactor D-Bus annotation class out from D-Bus properties class.

* mandos (DBusObjectWithAnnotations): New; factored out D-Bus
                                      annotations code from
                                      DBusObjectWithProperties class.
  (DBusObjectWithProperties): Inherit from DBusObjectWithAnnotations.
  (main/MandosDBusService): - '' -
  (main/MandosDBusService._foo): Removed interface annotation for
                                 "o.f.D.Property.EmitsChangedSignal";
                                 this object has no properties.

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Lines of Context:
mandos-monitor
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3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009,2010 Teddy Hogeborn
7
 
# Copyright © 2009,2010 Björn Påhlsson
 
6
# Copyright © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 Björn Påhlsson
8
8
# 
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
17
17
#     GNU General Public License for more details.
18
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
24
25
 
25
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
26
32
 
27
33
import sys
28
34
import os
29
 
import signal
30
35
 
31
36
import datetime
32
37
 
34
39
import urwid
35
40
 
36
41
from dbus.mainloop.glib import DBusGMainLoop
37
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
38
46
 
39
47
import dbus
40
48
 
41
 
import UserList
42
 
 
43
49
import locale
44
50
 
45
 
locale.setlocale(locale.LC_ALL, u'')
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
46
55
 
47
56
import logging
48
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
49
58
 
50
59
# Some useful constants
51
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
52
61
server_interface = domain + '.Mandos'
53
62
client_interface = domain + '.Mandos.Client'
54
 
version = "1.2.3"
55
 
 
56
 
# Always run in monochrome mode
57
 
urwid.curses_display.curses.has_colors = lambda : False
58
 
 
59
 
# Urwid doesn't support blinking, but we want it.  Since we have no
60
 
# use for underline on its own, we make underline also always blink.
61
 
urwid.curses_display.curses.A_UNDERLINE |= (
62
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.9"
63
64
 
64
65
def isoformat_to_datetime(iso):
65
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
66
67
    if not iso:
67
68
        return None
68
 
    d, t = iso.split(u"T", 1)
69
 
    year, month, day = d.split(u"-", 2)
70
 
    hour, minute, second = t.split(u":", 2)
 
69
    d, t = iso.split("T", 1)
 
70
    year, month, day = d.split("-", 2)
 
71
    hour, minute, second = t.split(":", 2)
71
72
    second, fraction = divmod(float(second), 1)
72
73
    return datetime.datetime(int(year),
73
74
                             int(month),
82
83
    properties and calls a hook function when any of them are
83
84
    changed.
84
85
    """
85
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
86
87
        self.proxy = proxy_object # Mandos Client proxy object
87
 
        
88
 
        self.properties = dict()
89
 
        self.proxy.connect_to_signal(u"PropertyChanged",
90
 
                                     self.property_changed,
91
 
                                     client_interface,
92
 
                                     byte_arrays=True)
93
 
        
94
 
        self.properties.update(
95
 
            self.proxy.GetAll(client_interface,
96
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
97
 
 
98
 
        #XXX This break good super behaviour!
99
 
#        super(MandosClientPropertyCache, self).__init__(
100
 
#            *args, **kwargs)
 
88
        self.properties = dict() if properties is None else properties
 
89
        self.property_changed_match = (
 
90
            self.proxy.connect_to_signal("PropertiesChanged",
 
91
                                         self.properties_changed,
 
92
                                         dbus.PROPERTIES_IFACE,
 
93
                                         byte_arrays=True))
 
94
        
 
95
        if properties is None:
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
 
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
101
102
    
102
 
    def property_changed(self, property=None, value=None):
103
 
        """This is called whenever we get a PropertyChanged signal
104
 
        It updates the changed property in the "properties" dict.
 
103
    def properties_changed(self, interface, properties, invalidated):
 
104
        """This is called whenever we get a PropertiesChanged signal
 
105
        It updates the changed properties in the "properties" dict.
105
106
        """
106
107
        # Update properties dict with new value
107
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
 
109
    
 
110
    def delete(self):
 
111
        self.property_changed_match.remove()
108
112
 
109
113
 
110
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
112
116
    """
113
117
    
114
118
    def __init__(self, server_proxy_object=None, update_hook=None,
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
116
120
        # Called on update
117
121
        self.update_hook = update_hook
118
122
        # Called on delete
123
127
        self.logger = logger
124
128
        
125
129
        self._update_timer_callback_tag = None
126
 
        self._update_timer_callback_lock = 0
127
 
        self.last_checker_failed = False
128
130
        
129
131
        # The widget shown normally
130
 
        self._text_widget = urwid.Text(u"")
 
132
        self._text_widget = urwid.Text("")
131
133
        # The widget shown when we have focus
132
 
        self._focus_text_widget = urwid.Text(u"")
133
 
        super(MandosClientWidget, self).__init__(
134
 
            update_hook=update_hook, delete_hook=delete_hook,
135
 
            *args, **kwargs)
 
134
        self._focus_text_widget = urwid.Text("")
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
136
136
        self.update()
137
137
        self.opened = False
138
138
        
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
140
 
                                                [u"LastCheckedOK"])
141
 
        if last_checked_ok is None:
142
 
            self.last_checker_failed = True
143
 
        else:
144
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
145
 
                                         - last_checked_ok)
146
 
                                        > datetime.timedelta
147
 
                                        (milliseconds=
148
 
                                         self.properties
149
 
                                         [u"Interval"]))
150
 
        
151
 
        if self.last_checker_failed:
152
 
            self.using_timer(True)
153
 
        
154
 
        if self.need_approval:
155
 
            self.using_timer(True)
156
 
        
157
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
158
 
                                     self.checker_completed,
159
 
                                     client_interface,
160
 
                                     byte_arrays=True)
161
 
        self.proxy.connect_to_signal(u"CheckerStarted",
162
 
                                     self.checker_started,
163
 
                                     client_interface,
164
 
                                     byte_arrays=True)
165
 
        self.proxy.connect_to_signal(u"GotSecret",
166
 
                                     self.got_secret,
167
 
                                     client_interface,
168
 
                                     byte_arrays=True)
169
 
        self.proxy.connect_to_signal(u"NeedApproval",
170
 
                                     self.need_approval,
171
 
                                     client_interface,
172
 
                                     byte_arrays=True)
173
 
        self.proxy.connect_to_signal(u"Rejected",
174
 
                                     self.rejected,
175
 
                                     client_interface,
176
 
                                     byte_arrays=True)
 
139
        self.match_objects = (
 
140
            self.proxy.connect_to_signal("CheckerCompleted",
 
141
                                         self.checker_completed,
 
142
                                         client_interface,
 
143
                                         byte_arrays=True),
 
144
            self.proxy.connect_to_signal("CheckerStarted",
 
145
                                         self.checker_started,
 
146
                                         client_interface,
 
147
                                         byte_arrays=True),
 
148
            self.proxy.connect_to_signal("GotSecret",
 
149
                                         self.got_secret,
 
150
                                         client_interface,
 
151
                                         byte_arrays=True),
 
152
            self.proxy.connect_to_signal("NeedApproval",
 
153
                                         self.need_approval,
 
154
                                         client_interface,
 
155
                                         byte_arrays=True),
 
156
            self.proxy.connect_to_signal("Rejected",
 
157
                                         self.rejected,
 
158
                                         client_interface,
 
159
                                         byte_arrays=True))
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
177
162
    
178
 
    def property_changed(self, property=None, value=None):
179
 
        super(self, MandosClientWidget).property_changed(property,
180
 
                                                         value)
181
 
        if property == u"ApprovalPending":
182
 
            using_timer(bool(value))
183
 
        
184
163
    def using_timer(self, flag):
185
164
        """Call this method with True or False when timer should be
186
165
        activated or deactivated.
187
166
        """
188
 
        old = self._update_timer_callback_lock
189
 
        if flag:
190
 
            self._update_timer_callback_lock += 1
191
 
        else:
192
 
            self._update_timer_callback_lock -= 1
193
 
        if old == 0 and self._update_timer_callback_lock:
 
167
        if flag and self._update_timer_callback_tag is None:
 
168
            # Will update the shown timer value every second
194
169
            self._update_timer_callback_tag = (gobject.timeout_add
195
170
                                               (1000,
196
171
                                                self.update_timer))
197
 
        elif old and self._update_timer_callback_lock == 0:
 
172
        elif not (flag or self._update_timer_callback_tag is None):
198
173
            gobject.source_remove(self._update_timer_callback_tag)
199
174
            self._update_timer_callback_tag = None
200
175
    
201
176
    def checker_completed(self, exitstatus, condition, command):
202
177
        if exitstatus == 0:
203
 
            if self.last_checker_failed:
204
 
                self.last_checker_failed = False
205
 
                self.using_timer(False)
206
 
            #self.logger(u'Checker for client %s (command "%s")'
207
 
            #            u' was successful'
208
 
            #            % (self.properties[u"Name"], command))
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
209
181
            self.update()
210
182
            return
211
183
        # Checker failed
212
 
        if not self.last_checker_failed:
213
 
            self.last_checker_failed = True
214
 
            self.using_timer(True)
215
184
        if os.WIFEXITED(condition):
216
 
            self.logger(u'Checker for client %s (command "%s")'
217
 
                        u' failed with exit code %s'
218
 
                        % (self.properties[u"Name"], command,
219
 
                           os.WEXITSTATUS(condition)))
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                os.WEXITSTATUS(condition)))
220
189
        elif os.WIFSIGNALED(condition):
221
 
            self.logger(u'Checker for client %s (command "%s")'
222
 
                        u' was killed by signal %s'
223
 
                        % (self.properties[u"Name"], command,
224
 
                           os.WTERMSIG(condition)))
225
 
        elif os.WCOREDUMP(condition):
226
 
            self.logger(u'Checker for client %s (command "%s")'
227
 
                        u' dumped core'
228
 
                        % (self.properties[u"Name"], command))
229
 
        else:
230
 
            self.logger(u'Checker for client %s completed'
231
 
                        u' mysteriously')
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                os.WTERMSIG(condition)))
232
194
        self.update()
233
195
    
234
196
    def checker_started(self, command):
235
 
        #self.logger(u'Client %s started checker "%s"'
236
 
        #            % (self.properties[u"Name"], unicode(command)))
237
 
        pass
 
197
        """Server signals that a checker started."""
 
198
        self.logger('Client {} started checker "{}"'
 
199
                    .format(self.properties["Name"],
 
200
                            command), level=0)
238
201
    
239
202
    def got_secret(self):
240
 
        self.last_checker_failed = False
241
 
        self.logger(u'Client %s received its secret'
242
 
                    % self.properties[u"Name"])
 
203
        self.logger('Client {} received its secret'
 
204
                    .format(self.properties["Name"]))
243
205
    
244
206
    def need_approval(self, timeout, default):
245
207
        if not default:
246
 
            message = u'Client %s needs approval within %s seconds'
 
208
            message = 'Client {} needs approval within {} seconds'
247
209
        else:
248
 
            message = u'Client %s will get its secret in %s seconds'
249
 
        self.logger(message
250
 
                    % (self.properties[u"Name"], timeout/1000))
251
 
        self.using_timer(True)
 
210
            message = 'Client {} will get its secret in {} seconds'
 
211
        self.logger(message.format(self.properties["Name"],
 
212
                                   timeout/1000))
252
213
    
253
214
    def rejected(self, reason):
254
 
        self.logger(u'Client %s was rejected; reason: %s'
255
 
                    % (self.properties[u"Name"], reason))
 
215
        self.logger('Client {} was rejected; reason: {}'
 
216
                    .format(self.properties["Name"], reason))
256
217
    
257
218
    def selectable(self):
258
219
        """Make this a "selectable" widget.
259
220
        This overrides the method from urwid.FlowWidget."""
260
221
        return True
261
222
    
262
 
    def rows(self, (maxcol,), focus=False):
 
223
    def rows(self, maxcolrow, focus=False):
263
224
        """How many rows this widget will occupy might depend on
264
225
        whether we have focus or not.
265
226
        This overrides the method from urwid.FlowWidget"""
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
227
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
267
228
    
268
229
    def current_widget(self, focus=False):
269
230
        if focus or self.opened:
273
234
    def update(self):
274
235
        "Called when what is visible on the screen should be updated."
275
236
        # How to add standout mode to a style
276
 
        with_standout = { u"normal": u"standout",
277
 
                          u"bold": u"bold-standout",
278
 
                          u"underline-blink":
279
 
                              u"underline-blink-standout",
280
 
                          u"bold-underline-blink":
281
 
                              u"bold-underline-blink-standout",
 
237
        with_standout = { "normal": "standout",
 
238
                          "bold": "bold-standout",
 
239
                          "underline-blink":
 
240
                              "underline-blink-standout",
 
241
                          "bold-underline-blink":
 
242
                              "bold-underline-blink-standout",
282
243
                          }
283
 
 
 
244
        
284
245
        # Rebuild focus and non-focus widgets using current properties
285
 
 
 
246
        
286
247
        # Base part of a client. Name!
287
 
        base = (u'%(name)s: '
288
 
                      % {u"name": self.properties[u"Name"]})
289
 
        if not self.properties[u"Enabled"]:
290
 
            message = u"DISABLED"
291
 
        elif self.properties[u"ApprovalPending"]:
 
248
        base = '{name}: '.format(name=self.properties["Name"])
 
249
        if not self.properties["Enabled"]:
 
250
            message = "DISABLED"
 
251
            self.using_timer(False)
 
252
        elif self.properties["ApprovalPending"]:
292
253
            timeout = datetime.timedelta(milliseconds
293
254
                                         = self.properties
294
 
                                         [u"ApprovalDelay"])
 
255
                                         ["ApprovalDelay"])
295
256
            last_approval_request = isoformat_to_datetime(
296
 
                self.properties[u"LastApprovalRequest"])
 
257
                self.properties["LastApprovalRequest"])
297
258
            if last_approval_request is not None:
298
 
                timer = timeout - (datetime.datetime.utcnow()
299
 
                                   - last_approval_request)
 
259
                timer = max(timeout - (datetime.datetime.utcnow()
 
260
                                       - last_approval_request),
 
261
                            datetime.timedelta())
300
262
            else:
301
263
                timer = datetime.timedelta()
302
 
            if self.properties[u"ApprovedByDefault"]:
303
 
                message = u"Approval in %s. (d)eny?"
304
 
            else:
305
 
                message = u"Denial in %s. (a)pprove?"
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
307
 
        elif self.last_checker_failed:
308
 
            timeout = datetime.timedelta(milliseconds
309
 
                                         = self.properties
310
 
                                         [u"Timeout"])
311
 
            last_ok = isoformat_to_datetime(
312
 
                max((self.properties[u"LastCheckedOK"]
313
 
                     or self.properties[u"Created"]),
314
 
                    self.properties[u"LastEnabled"]))
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
316
 
            message = (u'A checker has failed! Time until client'
317
 
                       u' gets disabled: %s'
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
264
            if self.properties["ApprovedByDefault"]:
 
265
                message = "Approval in {}. (d)eny?"
 
266
            else:
 
267
                message = "Denial in {}. (a)pprove?"
 
268
            message = message.format(str(timer).rsplit(".", 1)[0])
 
269
            self.using_timer(True)
 
270
        elif self.properties["LastCheckerStatus"] != 0:
 
271
            # When checker has failed, show timer until client expires
 
272
            expires = self.properties["Expires"]
 
273
            if expires == "":
 
274
                timer = datetime.timedelta(0)
 
275
            else:
 
276
                expires = (datetime.datetime.strptime
 
277
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
278
                timer = max(expires - datetime.datetime.utcnow(),
 
279
                            datetime.timedelta())
 
280
            message = ('A checker has failed! Time until client'
 
281
                       ' gets disabled: {}'
 
282
                       .format(str(timer).rsplit(".", 1)[0]))
 
283
            self.using_timer(True)
319
284
        else:
320
 
            message = u"enabled"
321
 
        self._text = "%s%s" % (base, message)
322
 
            
 
285
            message = "enabled"
 
286
            self.using_timer(False)
 
287
        self._text = "{}{}".format(base, message)
 
288
        
323
289
        if not urwid.supports_unicode():
324
290
            self._text = self._text.encode("ascii", "replace")
325
 
        textlist = [(u"normal", self._text)]
 
291
        textlist = [("normal", self._text)]
326
292
        self._text_widget.set_text(textlist)
327
293
        self._focus_text_widget.set_text([(with_standout[text[0]],
328
294
                                           text[1])
337
303
            self.update_hook()
338
304
    
339
305
    def update_timer(self):
340
 
        "called by gobject"
 
306
        """called by gobject. Will indefinitely loop until
 
307
        gobject.source_remove() on tag is called"""
341
308
        self.update()
342
309
        return True             # Keep calling this
343
310
    
344
 
    def delete(self):
 
311
    def delete(self, **kwargs):
345
312
        if self._update_timer_callback_tag is not None:
346
313
            gobject.source_remove(self._update_timer_callback_tag)
347
314
            self._update_timer_callback_tag = None
 
315
        for match in self.match_objects:
 
316
            match.remove()
 
317
        self.match_objects = ()
348
318
        if self.delete_hook is not None:
349
319
            self.delete_hook(self)
 
320
        return super(MandosClientWidget, self).delete(**kwargs)
350
321
    
351
 
    def render(self, (maxcol,), focus=False):
 
322
    def render(self, maxcolrow, focus=False):
352
323
        """Render differently if we have focus.
353
324
        This overrides the method from urwid.FlowWidget"""
354
 
        return self.current_widget(focus).render((maxcol,),
 
325
        return self.current_widget(focus).render(maxcolrow,
355
326
                                                 focus=focus)
356
327
    
357
 
    def keypress(self, (maxcol,), key):
 
328
    def keypress(self, maxcolrow, key):
358
329
        """Handle keys.
359
330
        This overrides the method from urwid.FlowWidget"""
360
 
        if key == u"+":
361
 
            self.proxy.Enable(dbus_interface = client_interface)
362
 
        elif key == u"-":
363
 
            self.proxy.Disable(dbus_interface = client_interface)
364
 
        elif key == u"a":
 
331
        if key == "+":
 
332
            self.proxy.Set(client_interface, "Enabled",
 
333
                           dbus.Boolean(True), ignore_reply = True,
 
334
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
335
        elif key == "-":
 
336
            self.proxy.Set(client_interface, "Enabled", False,
 
337
                           ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "a":
365
340
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
366
 
                               dbus_interface = client_interface)
367
 
        elif key == u"d":
 
341
                               dbus_interface = client_interface,
 
342
                               ignore_reply=True)
 
343
        elif key == "d":
368
344
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
369
 
                                  dbus_interface = client_interface)
370
 
        elif key == u"R" or key == u"_" or key == u"ctrl k":
 
345
                                  dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "R" or key == "_" or key == "ctrl k":
371
348
            self.server_proxy_object.RemoveClient(self.proxy
372
 
                                                  .object_path)
373
 
        elif key == u"s":
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
375
 
        elif key == u"S":
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
377
 
        elif key == u"C":
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
349
                                                  .object_path,
 
350
                                                  ignore_reply=True)
 
351
        elif key == "s":
 
352
            self.proxy.Set(client_interface, "CheckerRunning",
 
353
                           dbus.Boolean(True), ignore_reply = True,
 
354
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
355
        elif key == "S":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(False), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "C":
 
360
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
361
                                 ignore_reply=True)
379
362
        # xxx
380
 
#         elif key == u"p" or key == "=":
 
363
#         elif key == "p" or key == "=":
381
364
#             self.proxy.pause()
382
 
#         elif key == u"u" or key == ":":
 
365
#         elif key == "u" or key == ":":
383
366
#             self.proxy.unpause()
384
 
#         elif key == u"RET":
 
367
#         elif key == "RET":
385
368
#             self.open()
386
369
        else:
387
370
            return key
388
371
    
389
 
    def property_changed(self, property=None, value=None,
390
 
                         *args, **kwargs):
391
 
        """Call self.update() if old value is not new value.
 
372
    def properties_changed(self, interface, properties, invalidated):
 
373
        """Call self.update() if any properties changed.
392
374
        This overrides the method from MandosClientPropertyCache"""
393
 
        property_name = unicode(property)
394
 
        old_value = self.properties.get(property_name)
395
 
        super(MandosClientWidget, self).property_changed(
396
 
            property=property, value=value, *args, **kwargs)
397
 
        if self.properties.get(property_name) != old_value:
 
375
        old_values = { key: self.properties.get(key)
 
376
                       for key in properties.keys() }
 
377
        super(MandosClientWidget, self).properties_changed(
 
378
            interface, properties, invalidated)
 
379
        if any(old_values[key] != self.properties.get(key)
 
380
               for key in old_values):
398
381
            self.update()
399
382
 
400
383
 
403
386
    "down" key presses, thus not allowing any containing widgets to
404
387
    use them as an excuse to shift focus away from this widget.
405
388
    """
406
 
    def keypress(self, (maxcol, maxrow), key):
407
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
408
 
                                                        maxrow), key)
409
 
        if ret in (u"up", u"down"):
 
389
    def keypress(self, *args, **kwargs):
 
390
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
391
        if ret in ("up", "down"):
410
392
            return
411
393
        return ret
412
394
 
415
397
    """This is the entire user interface - the whole screen
416
398
    with boxes, lists of client widgets, etc.
417
399
    """
418
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
419
401
        DBusGMainLoop(set_as_default=True)
420
402
        
421
403
        self.screen = urwid.curses_display.Screen()
422
404
        
423
405
        self.screen.register_palette((
424
 
                (u"normal",
425
 
                 u"default", u"default", None),
426
 
                (u"bold",
427
 
                 u"default", u"default", u"bold"),
428
 
                (u"underline-blink",
429
 
                 u"default", u"default", u"underline"),
430
 
                (u"standout",
431
 
                 u"default", u"default", u"standout"),
432
 
                (u"bold-underline-blink",
433
 
                 u"default", u"default", (u"bold", u"underline")),
434
 
                (u"bold-standout",
435
 
                 u"default", u"default", (u"bold", u"standout")),
436
 
                (u"underline-blink-standout",
437
 
                 u"default", u"default", (u"underline", u"standout")),
438
 
                (u"bold-underline-blink-standout",
439
 
                 u"default", u"default", (u"bold", u"underline",
440
 
                                          u"standout")),
 
406
                ("normal",
 
407
                 "default", "default", None),
 
408
                ("bold",
 
409
                 "bold", "default", "bold"),
 
410
                ("underline-blink",
 
411
                 "underline,blink", "default", "underline,blink"),
 
412
                ("standout",
 
413
                 "standout", "default", "standout"),
 
414
                ("bold-underline-blink",
 
415
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
416
                ("bold-standout",
 
417
                 "bold,standout", "default", "bold,standout"),
 
418
                ("underline-blink-standout",
 
419
                 "underline,blink,standout", "default",
 
420
                 "underline,blink,standout"),
 
421
                ("bold-underline-blink-standout",
 
422
                 "bold,underline,blink,standout", "default",
 
423
                 "bold,underline,blink,standout"),
441
424
                ))
442
425
        
443
426
        if urwid.supports_unicode():
444
 
            self.divider = u"─" # \u2500
445
 
            #self.divider = u"━" # \u2501
 
427
            self.divider = "─" # \u2500
 
428
            #self.divider = "━" # \u2501
446
429
        else:
447
 
            #self.divider = u"-" # \u002d
448
 
            self.divider = u"_" # \u005f
 
430
            #self.divider = "-" # \u002d
 
431
            self.divider = "_" # \u005f
449
432
        
450
433
        self.screen.start()
451
434
        
458
441
        self.log = []
459
442
        self.max_log_length = max_log_length
460
443
        
 
444
        self.log_level = log_level
 
445
        
461
446
        # We keep a reference to the log widget so we can remove it
462
447
        # from the ListWalker without it getting destroyed
463
448
        self.logbox = ConstrainedListBox(self.log)
465
450
        # This keeps track of whether self.uilist currently has
466
451
        # self.logbox in it or not
467
452
        self.log_visible = True
468
 
        self.log_wrap = u"any"
 
453
        self.log_wrap = "any"
469
454
        
470
455
        self.rebuild()
471
 
        self.log_message_raw((u"bold",
472
 
                              u"Mandos Monitor version " + version))
473
 
        self.log_message_raw((u"bold",
474
 
                              u"q: Quit  ?: Help"))
 
456
        self.log_message_raw(("bold",
 
457
                              "Mandos Monitor version " + version))
 
458
        self.log_message_raw(("bold",
 
459
                              "q: Quit  ?: Help"))
475
460
        
476
461
        self.busname = domain + '.Mandos'
477
462
        self.main_loop = gobject.MainLoop()
478
 
        self.bus = dbus.SystemBus()
479
 
        mandos_dbus_objc = self.bus.get_object(
480
 
            self.busname, u"/", follow_name_owner_changes=True)
481
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
482
 
                                          dbus_interface
483
 
                                          = server_interface)
484
 
        try:
485
 
            mandos_clients = (self.mandos_serv
486
 
                              .GetAllClientsWithProperties())
487
 
        except dbus.exceptions.DBusException:
488
 
            mandos_clients = dbus.Dictionary()
489
 
        
490
 
        (self.mandos_serv
491
 
         .connect_to_signal(u"ClientRemoved",
492
 
                            self.find_and_remove_client,
493
 
                            dbus_interface=server_interface,
494
 
                            byte_arrays=True))
495
 
        (self.mandos_serv
496
 
         .connect_to_signal(u"ClientAdded",
497
 
                            self.add_new_client,
498
 
                            dbus_interface=server_interface,
499
 
                            byte_arrays=True))
500
 
        (self.mandos_serv
501
 
         .connect_to_signal(u"ClientNotFound",
502
 
                            self.client_not_found,
503
 
                            dbus_interface=server_interface,
504
 
                            byte_arrays=True))
505
 
        for path, client in mandos_clients.iteritems():
506
 
            client_proxy_object = self.bus.get_object(self.busname,
507
 
                                                      path)
508
 
            self.add_client(MandosClientWidget(server_proxy_object
509
 
                                               =self.mandos_serv,
510
 
                                               proxy_object
511
 
                                               =client_proxy_object,
512
 
                                               properties=client,
513
 
                                               update_hook
514
 
                                               =self.refresh,
515
 
                                               delete_hook
516
 
                                               =self.remove_client,
517
 
                                               logger
518
 
                                               =self.log_message),
519
 
                            path=path)
520
463
    
521
464
    def client_not_found(self, fingerprint, address):
522
 
        self.log_message((u"Client with address %s and fingerprint %s"
523
 
                          u" could not be found" % (address,
524
 
                                                    fingerprint)))
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
525
468
    
526
469
    def rebuild(self):
527
470
        """This rebuilds the User Interface.
537
480
                                                     self.divider)))
538
481
        if self.log_visible:
539
482
            self.uilist.append(self.logbox)
540
 
            pass
541
483
        self.topwidget = urwid.Pile(self.uilist)
542
484
    
543
 
    def log_message(self, message):
 
485
    def log_message(self, message, level=1):
 
486
        """Log message formatted with timestamp"""
 
487
        if level < self.log_level:
 
488
            return
544
489
        timestamp = datetime.datetime.now().isoformat()
545
 
        self.log_message_raw(timestamp + u": " + message)
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
546
492
    
547
 
    def log_message_raw(self, markup):
 
493
    def log_message_raw(self, markup, level=1):
548
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
549
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
550
498
        if (self.max_log_length
551
499
            and len(self.log) > self.max_log_length):
552
500
            del self.log[0:len(self.log)-self.max_log_length-1]
553
501
        self.logbox.set_focus(len(self.logbox.body.contents),
554
 
                              coming_from=u"above")
 
502
                              coming_from="above")
555
503
        self.refresh()
556
504
    
557
505
    def toggle_log_display(self):
558
506
        """Toggle visibility of the log buffer."""
559
507
        self.log_visible = not self.log_visible
560
508
        self.rebuild()
561
 
        #self.log_message(u"Log visibility changed to: "
562
 
        #                 + unicode(self.log_visible))
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
563
511
    
564
512
    def change_log_display(self):
565
513
        """Change type of log display.
566
514
        Currently, this toggles wrapping of text lines."""
567
 
        if self.log_wrap == u"clip":
568
 
            self.log_wrap = u"any"
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
569
517
        else:
570
 
            self.log_wrap = u"clip"
 
518
            self.log_wrap = "clip"
571
519
        for textwidget in self.log:
572
520
            textwidget.set_wrap_mode(self.log_wrap)
573
 
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
574
523
    
575
524
    def find_and_remove_client(self, path, name):
576
 
        """Find an client from its object path and remove it.
 
525
        """Find a client by its object path and remove it.
577
526
        
578
527
        This is connected to the ClientRemoved signal from the
579
528
        Mandos server object."""
581
530
            client = self.clients_dict[path]
582
531
        except KeyError:
583
532
            # not found?
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
584
535
            return
585
 
        self.remove_client(client, path)
 
536
        client.delete()
586
537
    
587
538
    def add_new_client(self, path):
588
539
        client_proxy_object = self.bus.get_object(self.busname, path)
603
554
        if path is None:
604
555
            path = client.proxy.object_path
605
556
        self.clients_dict[path] = client
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
557
        self.clients.sort(key=lambda c: c.properties["Name"])
607
558
        self.refresh()
608
559
    
609
560
    def remove_client(self, client, path=None):
611
562
        if path is None:
612
563
            path = client.proxy.object_path
613
564
        del self.clients_dict[path]
614
 
        if not self.clients_dict:
615
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
616
 
            # is completely emptied, we need to recreate it.
617
 
            self.clients = urwid.SimpleListWalker([])
618
 
            self.rebuild()
619
565
        self.refresh()
620
566
    
621
567
    def refresh(self):
625
571
    
626
572
    def run(self):
627
573
        """Start the main loop and exit when it's done."""
 
574
        self.bus = dbus.SystemBus()
 
575
        mandos_dbus_objc = self.bus.get_object(
 
576
            self.busname, "/", follow_name_owner_changes=True)
 
577
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
578
                                          dbus_interface
 
579
                                          = server_interface)
 
580
        try:
 
581
            mandos_clients = (self.mandos_serv
 
582
                              .GetAllClientsWithProperties())
 
583
            if not mandos_clients:
 
584
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
585
        except dbus.exceptions.DBusException:
 
586
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
587
            mandos_clients = dbus.Dictionary()
 
588
        
 
589
        (self.mandos_serv
 
590
         .connect_to_signal("ClientRemoved",
 
591
                            self.find_and_remove_client,
 
592
                            dbus_interface=server_interface,
 
593
                            byte_arrays=True))
 
594
        (self.mandos_serv
 
595
         .connect_to_signal("ClientAdded",
 
596
                            self.add_new_client,
 
597
                            dbus_interface=server_interface,
 
598
                            byte_arrays=True))
 
599
        (self.mandos_serv
 
600
         .connect_to_signal("ClientNotFound",
 
601
                            self.client_not_found,
 
602
                            dbus_interface=server_interface,
 
603
                            byte_arrays=True))
 
604
        for path, client in mandos_clients.items():
 
605
            client_proxy_object = self.bus.get_object(self.busname,
 
606
                                                      path)
 
607
            self.add_client(MandosClientWidget(server_proxy_object
 
608
                                               =self.mandos_serv,
 
609
                                               proxy_object
 
610
                                               =client_proxy_object,
 
611
                                               properties=client,
 
612
                                               update_hook
 
613
                                               =self.refresh,
 
614
                                               delete_hook
 
615
                                               =self.remove_client,
 
616
                                               logger
 
617
                                               =self.log_message),
 
618
                            path=path)
 
619
        
628
620
        self.refresh()
629
621
        self._input_callback_tag = (gobject.io_add_watch
630
622
                                    (sys.stdin.fileno(),
640
632
    
641
633
    def process_input(self, source, condition):
642
634
        keys = self.screen.get_input()
643
 
        translations = { u"ctrl n": u"down",      # Emacs
644
 
                         u"ctrl p": u"up",        # Emacs
645
 
                         u"ctrl v": u"page down", # Emacs
646
 
                         u"meta v": u"page up",   # Emacs
647
 
                         u" ": u"page down",      # less
648
 
                         u"f": u"page down",      # less
649
 
                         u"b": u"page up",        # less
650
 
                         u"j": u"down",           # vi
651
 
                         u"k": u"up",             # vi
 
635
        translations = { "ctrl n": "down",      # Emacs
 
636
                         "ctrl p": "up",        # Emacs
 
637
                         "ctrl v": "page down", # Emacs
 
638
                         "meta v": "page up",   # Emacs
 
639
                         " ": "page down",      # less
 
640
                         "f": "page down",      # less
 
641
                         "b": "page up",        # less
 
642
                         "j": "down",           # vi
 
643
                         "k": "up",             # vi
652
644
                         }
653
645
        for key in keys:
654
646
            try:
656
648
            except KeyError:    # :-)
657
649
                pass
658
650
            
659
 
            if key == u"q" or key == u"Q":
 
651
            if key == "q" or key == "Q":
660
652
                self.stop()
661
653
                break
662
 
            elif key == u"window resize":
 
654
            elif key == "window resize":
663
655
                self.size = self.screen.get_cols_rows()
664
656
                self.refresh()
665
 
            elif key == u"\f":  # Ctrl-L
 
657
            elif key == "ctrl l":
 
658
                self.screen.clear()
666
659
                self.refresh()
667
 
            elif key == u"l" or key == u"D":
 
660
            elif key == "l" or key == "D":
668
661
                self.toggle_log_display()
669
662
                self.refresh()
670
 
            elif key == u"w" or key == u"i":
 
663
            elif key == "w" or key == "i":
671
664
                self.change_log_display()
672
665
                self.refresh()
673
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
666
            elif key == "?" or key == "f1" or key == "esc":
674
667
                if not self.log_visible:
675
668
                    self.log_visible = True
676
669
                    self.rebuild()
677
 
                self.log_message_raw((u"bold",
678
 
                                      u"  ".
679
 
                                      join((u"q: Quit",
680
 
                                            u"?: Help",
681
 
                                            u"l: Log window toggle",
682
 
                                            u"TAB: Switch window",
683
 
                                            u"w: Wrap (log)"))))
684
 
                self.log_message_raw((u"bold",
685
 
                                      u"  "
686
 
                                      .join((u"Clients:",
687
 
                                             u"+: Enable",
688
 
                                             u"-: Disable",
689
 
                                             u"R: Remove",
690
 
                                             u"s: Start new checker",
691
 
                                             u"S: Stop checker",
692
 
                                             u"C: Checker OK",
693
 
                                             u"a: Approve",
694
 
                                             u"d: Deny"))))
 
670
                self.log_message_raw(("bold",
 
671
                                      "  ".
 
672
                                      join(("q: Quit",
 
673
                                            "?: Help",
 
674
                                            "l: Log window toggle",
 
675
                                            "TAB: Switch window",
 
676
                                            "w: Wrap (log lines)",
 
677
                                            "v: Toggle verbose log",
 
678
                                            ))))
 
679
                self.log_message_raw(("bold",
 
680
                                      "  "
 
681
                                      .join(("Clients:",
 
682
                                             "+: Enable",
 
683
                                             "-: Disable",
 
684
                                             "R: Remove",
 
685
                                             "s: Start new checker",
 
686
                                             "S: Stop checker",
 
687
                                             "C: Checker OK",
 
688
                                             "a: Approve",
 
689
                                             "d: Deny"))))
695
690
                self.refresh()
696
 
            elif key == u"tab":
 
691
            elif key == "tab":
697
692
                if self.topwidget.get_focus() is self.logbox:
698
693
                    self.topwidget.set_focus(0)
699
694
                else:
700
695
                    self.topwidget.set_focus(self.logbox)
701
696
                self.refresh()
702
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
703
 
            #      or key == u">"):
 
697
            elif key == "v":
 
698
                if self.log_level == 0:
 
699
                    self.log_level = 1
 
700
                    self.log_message("Verbose mode: Off")
 
701
                else:
 
702
                    self.log_level = 0
 
703
                    self.log_message("Verbose mode: On")
 
704
            #elif (key == "end" or key == "meta >" or key == "G"
 
705
            #      or key == ">"):
704
706
            #    pass            # xxx end-of-buffer
705
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
706
 
            #      or key == u"<"):
 
707
            #elif (key == "home" or key == "meta <" or key == "g"
 
708
            #      or key == "<"):
707
709
            #    pass            # xxx beginning-of-buffer
708
 
            #elif key == u"ctrl e" or key == u"$":
 
710
            #elif key == "ctrl e" or key == "$":
709
711
            #    pass            # xxx move-end-of-line
710
 
            #elif key == u"ctrl a" or key == u"^":
 
712
            #elif key == "ctrl a" or key == "^":
711
713
            #    pass            # xxx move-beginning-of-line
712
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
            #elif key == "ctrl b" or key == "meta (" or key == "h":
713
715
            #    pass            # xxx left
714
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
716
            #elif key == "ctrl f" or key == "meta )" or key == "l":
715
717
            #    pass            # xxx right
716
 
            #elif key == u"a":
 
718
            #elif key == "a":
717
719
            #    pass            # scroll up log
718
 
            #elif key == u"z":
 
720
            #elif key == "z":
719
721
            #    pass            # scroll down log
720
722
            elif self.topwidget.selectable():
721
723
                self.topwidget.keypress(self.size, key)
727
729
    ui.run()
728
730
except KeyboardInterrupt:
729
731
    ui.screen.stop()
730
 
except Exception, e:
731
 
    ui.log_message(unicode(e))
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
732
734
    ui.screen.stop()
733
735
    raise